Read the passage from an article about gravity.
imagine riding in an elevator to the top floor of a very tall building. at the top, the cables supporting the car break, causing the car and you to fall to the ground. (in this example, we discount the effects of air friction on the falling car.) since you and the elevator car are falling together, you feel like you are floating inside the car. in other words, you and the elevator car are accelerating downward at the same rate due to gravity alone. if a scale were present, your weight would not register because the scale would be falling too. the ride is lots of fun until you get to the bottom! nasa calls this floating condition microgravity. the condition is experienced in orbit and in transit between planetary bodies.
which words are domain-specific terms used in the passage?